Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '97fc490c5942c50bc9d1c4ebbd437cd98a93fcfc8acec6453402a76bf4573775' 
  AND token = 'OafKqS3i0FHPnZ/SyOqluOxGQ2aZZuKSz9cdSEApCJc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}